Switching and control unit S




Power supply of the standard switching and control unit for AR and Optima

Every device is connected to the switching and control unit using a 5 x 1.5 mm2 NYM-J cable for power supply and operating and error messages.

In the case of large individual or combined exhaust gas systems, multiple devices can be integrated for one heating zone. Every heating zone is equipped with a separate room temperature sensor for monitoring the temperature. The room temperature sensor is connected to the switching and control unit using a shielded cable, e.g. YSTY 2 x 2-0.8.

For linear device versions AR 13 HB, AR 22 HB, AR 40 HB and AR 50 HB with an individual exhaust gas routing system, the responsible specialist company must lay a 3 x 1.5 m² NYM-J connection cable between the burner and the exhaust gas fan (not additionally listed in the wiring diagram).

The exhaust gas fan for combined exhaust gas systems must be connected to the switching and control unit depending on the fan type and cable length:

Fan motor with 230 V and 50 Hz:
3 x 1.5 mm² NYM-J
Fan motor with 400 V and 50 Hz:
5 x 1.5 mm² NYM-J or higher


(also see Power supply and cable lengths)

In the case of a Door-Off control unit, every switching contact on the door (on-site) is connected to the Door-Off control unit using a 3 x 1.5 mm² NYM-J cable. The Door-Off control unit is provided between R.O.S.S.Y and the devices to be controlled.

Light barriers of Park-Off must be wired with the Park-Off control unit using a cable such as 4 x 0.75 mm² NYM-J. The Park-Off control unit is provided between R.O.S.S.Y and the devices to be controlled.

Only specialist companies may carry out electrical activities in conformity with the applicable VDE provisions and other guidelines if required.

Wiring diagrams can be found on pages 4.3 and 4.4 – they correspond to those of R.O.S.S.Y.

Power supply of the switching and control unit for MS 28-66

Power is supplied to the switching and control unit using a 5 x 2.5 mm² NYM-J cable. The control line between the connection panel and the switching and control unit is established using an 18 x 1.5 mm² cable such as HYSCY-JZ.

Every heating zone is equipped with a separate room temperature sensor for monitoring the temperature. This sensor is connected to the control components integrated into the switching and control unit using a 3 x 1.5 mm² NYM-J cable. For the characteristic data of the feed cable, please refer to the table on the Power supply and cable lengths page.

Only specialist companies may carry out electrical activities in conformity with the applicable VDE provisions and other guidelines if required.

Wiring diagram of Thermoline MS
2 devices / 2 heating zones

Verkabelungsschema Thermoline MS


Power supply of the switching and control unit for MS 70-140

Power is supplied to the switching and control unit using a 5 x 2.5 mm² NYM-J cable. The control line between the connection panel and the switching and control unit is flexibly installed using a 25 x 2.5 mm² cable such as HYSCY-JZ.

Every heating zone is equipped with a separate room temperature sensor for monitoring the temperature. This sensor is connected with the control components integrated into the switching and control unit using a 3 x 1.5 mm² NYM-J cable. For the characteristic data of the feed cable, please refer to the table on the Power supply and cable lengths page.

Only specialist companies may carry out electrical activities in conformity with the applicable VDE provisions and other guidelines if required.

Wiring diagram of Thermoline MS
2 devices / 2 heating zones

Verkabelungsschema Thermoline MS